Honeywell AreaRAE Pro - Span Calibration; Three-Point Calibration for Enhanced Linearity with Extended-Range and Ppb PID Sensors

AreaRAE Plus & AreaRAE Pro User’s Guide
70
15.3 Span Calibration
This procedure determines the second point of the sensor calibration.
Note: When a manual calibration is performed, the readings shown are in the equivalent units of the
calibration gas, and not the measurement gas.
15.4 Three-Point Calibration For Enhanced Linearity With Extended-
Range And ppb PID Sensors
For better linearity at higher concentrations when an AreaRAE Plus/Pro is equipped with a PID sensor, a
3-point calibration can be performed.
IMPORTANT!
Three-point calibration is disabled by default, but can be enabled using ProRAE Studio II Instrument
Configuration and Data Management software on AreaRAE Plus/Pro instruments with 10.6eV PID
sensors, including high-range ppm and ppb PID sensors.
Default calibration gas settings for AreaRAE Plus/Pro PID sensors are as follows:
Sensor
Specifications
Zero
Span
Span 2
(Third
calibration point,
if enabled)
AreaRAE Plus/Pro
parts-per-billion
(ppb) PID
0 to 2,000 ppm
range, 10 ppb
resolution
With a
charcoal
filter or VOC
zeroing tube
10 ppm Isobutylene
100 ppm
Isobutylene
AreaRAE Plus/Pro
extended-range ppm
PID
0 to 5,000 ppm
range, 0.1 ppm
resolution
Fresh air or
dry air
100 ppm Isobutylene
1,000 ppm
Isobutylene
AreaRAE Plus/Pro
9.8eV PID
0.1 to 2,000 ppm;
0.1 ppm resolution
Fresh air or
dry air
100 ppm Isobutylene
5 ppm Benzene
Not supported